Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e9e015448d3b9d…

MALICIOUS

PDF

36.6 KB Created: 2020-08-04 22:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa632b0d76ae792b17f76f776cda7326 SHA-1: b21d236127b8208963004b5b8bd580d1abc2f041 SHA-256: d9e9e015448d3b9d881df7051faa815b7495f86cf75241824df7f812fd1ea3e5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other URLs hosted on Shopify and other domains, suggesting a link farm for SEO poisoning. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring the user to click the malicious URL, likely leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=zeros+of+polynomial+functions+worksheet+pdf In PDF document text
    • http://files.universityroadhouse.com/uploads/1/3/1/6/131637953/1576177.pdfIn PDF document text
    • http://files.nashvilledebateleague.org/uploads/1/3/0/9/130969403/firezurepusapokogo.pdfIn PDF document text
    • http://files.medisysprepares.org/uploads/1/3/0/8/130874668/gufisigibir.pdfIn PDF document text
    • http://files.geminimusicaltheatre.com/uploads/1/3/0/9/130969984/5494454.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1117/7639/files/91253297918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/92364012617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6114/4728/files/cambridge_english_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5265/2951/files/55814652196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/76273400508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/25748554490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/39089846797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0352/5790/files/pidakepezogisufidomujuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fufalelavajukunegaxiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/rogedojuxeginesezipuxoxoj.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51B5 5608 bytes
SHA-256: 3c07834721405e4a9a55e0997643f46812811ac55437b62056ac8d94cdfcc81b
font_01_sfnt_off000064b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B7 9520 bytes
SHA-256: 8cbf9ad0e692f7199463ce072f1eecfc87660955bea1fc47bea2a09795cb9e36

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